Paleocoenographic investigations on sediment profile GeoB6008


Near-shore waters along the northwest African margin are characterized by coastal upwelling and represent one of the world's major upwelling regions. Sea surface temperature (SST) records from Moroccan sediment cores, extending back 2500 years, reveal anomalous and unprecedented cooling during the 20th century, which is consistent with increased upwelling. Upwelling-driven SSTs also vary out of phase with millennial-scale changes in Northern Hemisphere temperature anomalies (NHTAs) and show relatively warm conditions during the Little Ice Age and relatively cool conditions during the Medieval Warm Period. Together, these results suggest that coastal upwelling varies with NHTAs and that upwelling off northwest Africa may continue to intensify as global warming and atmospheric CO2 levels increase.

Supplement to: McGregor, Helen V; Dima, Mihai; Fischer, Helmut W; Mulitza, Stefan (2007): Rapid 20th-Century Increase in Coastal Upwelling off Northwest Africa. Science, 315(5812), 637-639

Related Identifier IsSupplementTo
Metadata Access
Creator McGregor, Helen V ORCID logo; Dima, Mihai; Fischer, Helmut W ORCID logo; Mulitza, Stefan ORCID logo
Publisher PANGAEA
Publication Year 2010
Funding Reference Fifth Framework Programme Crossref Funder ID EVK2-CT-2002-00143 Patterns of Climate Variability in the North Atlantic
Rights Creative Commons Attribution 3.0 Unported;
OpenAccess true
Resource Type Supplementary Publication Series of Datasets; Collection
Format application/zip
Size 6 datasets
Discipline Earth System Research
Spatial Coverage (-10.098 LON, 30.845 LAT)
Temporal Coverage Begin 1999-10-18T17:28:00Z
Temporal Coverage End 1999-10-18T17:59:00Z